Loop the loop toy



Jan.8,1946. H BURUN y 2,392,722

LOOP THE LOOP TOY Filed May 14, 1945 Patented Jan. 8, 1946 UNITED STATESPATE-NT OFFICE y Y l znz LP Loi Lsiie H.' Biirlin; Va1parsism'1nd;assigns t6 Milton L. stumi, Evanston; 111.',l doing businessas Milton'Sturm and Company 7 Clafs.

nini invention relniesi@ tdy'sj f the typ Wnerin n wy fleure nnvngnneelsarranged Sn nS t, CQnSntnn the. n gnle n n lonnrnil nar ms' be` cansedto roll down etninlml thereby gaining yelocityl, andtheri caused tospeed along the gronnl on another setfof Wheels.. Y t

is, @ne nf the Objects nf th, prsent invnnftion to' proyide eJA simpletrackway fo aL toy of ins stove mentioned. charaiern is, further objectof the present nventonto provide an nnnreifd 1091 the 19911? trnkwn"fO-" ty' 0f tnisnnnlnter--, Infnrdnne'wfn the pre'fnted enrnnnnn nt @tthepfrnnnnwnt the 'trank- Wn? nnlnstsnf n' nlynnfl nl which is mnntedenIedgefso-thttfthe'edge of thhord will con-v st ivtute a, track for themonoral' Whe'els` `of the toy;A` The loop o f the tjckwly, in accordn'cewith th'lpssent invention; consists of a, thin aririiiiaif maid whichslit iiazdiaiiy and' the two" bnttoln n f dbwnwardly projnnti l mountingpon- |j and thiougiigaihme; 39j in tiisfieg 32 sind,:iiirougi;--

a'. sorrespohding i 1101121 .1.111. ihesirip standseri/esito" helphoidth 1061525 and" the strip s1' in' plac'.

Vtionship by a thin wooden pin i.

V constructed in a very simple manner.

A Itoy monorail gure 44 may be placed on top of the track 6 to roll downthe trackway and make a loop the loop turn at the bottom of thetrackway. The toy gure consists of two ilat boards 50-50 securedtogether in spaced parallel rela- A pair of grooved pulleys or wheels52-52 are journalled between the boards 50, the groovesinthe wheelsbeing of width just right to enable those'wheels to embrace and ride onthe trackway previously described. Four wheels 54 are rotatably mountedon the outside of the boards 5U. The boards 59 may be decorated orshaped to simulate a toy figure. The center of gravity of theentirefigure is appreciably -below the bottoms of the wheels` The toy iigure49 has been illustrated in Figure 1 in a position on top of thetrackway', with'th'e boards 50-50 thereof straddling but spaced fromYthe trackway, and the monorail wheels 52-52 restingionvthe tra'ckwayjyAIf the figure is started rolling'down the inclineit will pass fromthefportionl 8 of the incline tothe loop formed by theannulus25,traveling through the inside ofthe loopdue" tojthe momentumgained in' traveling downthe'trajckway 6, and then will travel along 1thef'track formedby the edge of the board 3T.

TheV forward edge of theboard 31 is tapered, as indicated atl'l; so thatthe forward moving toyV is'"gradually brought closer to the ground untilthe 'wheels 54'thereof contact the ground, where-` uponfthe toycontinues its advance on the ground due toits momentum;V Y li'InFi-guresand 6 I have' shown a modied construction wherein the track8 of Figure 1 is made/bf two separable parts, to faoiiitate packingofftl'ie unit for shipment. In/this construction theti'ackcomprises'separableflengths 8a and 8b ofplywoodlying in the sameplane and joinedat""th`e"'support 18a. The bottom of the board 8a rests on thetop ofthe'board 8b and has' a inclinedtongue-GU `which enters into a corre-`spondingly'shapedslot 6I at the top of thel board 8b'. Thef support |8a`comprises two similarA fiat sided'jlboards [i5-.66 which are paralleltoone IY Vaffecter:Thebottoms of the. Iboards lss-santrectangulai"islots`V in the base- I4 and are securedthereiri in spacedrelationship'. The dis'-v taicefbetween theboards 65-66 is equalto thethickness of theindividual boards 8a orSb." A

indicatedat 69, and embrace and hold the bot-` tmofthejtrack portion 8aagainst Jtransverse movement. The top of the track portion 8b andthelbottom'of the track portion 8a are vof the s amel construction asthat of th'e corresponding Vportions of the track 8 previouslyVdescribed.

The ltrack portion 8a maybe removed by a simple upward or liftingaction.

' Fromtheabove description it is apparent that Y I have provided asimpleloop the loop type of;

monorail toy wherein the trackway constituting tlieincline is made in asimple manner and wherein the loop portion of thertrackway is also In'compliance with the requirements of the patent statutes I have hereshown and described a preferred' embodiment of myinvention. It is;

however, `to be understood that the invention is not `Qlimit'ed tor theprecise construction here shown,V the Vsame vbeing merely illustrativeof the `principles. of the invention. AWhat I consider i new and desireto secure lby Letters Patent is:

1. A trackway Afor a loop the loop monorail toy vehicle, said trackwaycomprising a thin board mounted in a vertical plane with an edge of theboard inclined and constituting a portion of the trackway, a loop at thebottom of said portion of the trackway, said loop comprising a thinboard of annular shapeslit by a line of cut extending `from `theinnerecircleof Ythe Yannulus toits outer peripheryrthecut'. edges` beingsep- 'Y arated from one another to form Ythe loop into aspiral of anarcuate extent substantially 360,

the loop being positioned with its axis at right angles tothe plane ofthe said rst mentioned board and with the inclined trackway tangent tothe inner curve of the annulus,` said inner Vcurve of the annulusconstituting another portion of the trackway and a continuation of saidiirst V mentioned portion of the trackway.

' toy vehicle; said trackway comprising a thin sheet mounted in averticalplanewith an edgev cfg-'saidv sheet inclinedandconstituting aportion ofl the trackway,"and a toy vmonorail'car on said track-1' way,said car comprising ltwo-spacedapart sub-v stantially flat membersembracing and spaced from the trackway and a pair of wheels j ournalledbetween said members-'and' said wheels havingv peripheral' flangesembracing thek trackway and holding the car against sideways movementoff of the 'trackwam Vsaid car having in addition four bottomiwheels'adapted to. support and advance thel carasit leaves the trackway.r i v4; Atoy yincludingatrackwayfor a loop theloop monorail toyvehiclej, saidtrackway comprising a' thin boardmounted ina' vertical planewithan' edgeof the board inclined and constituting 'aporr tion of .the trackway, aloop at the bottom of 'said portion Aof* thetrackway, said loop.comprising a thinboard of annular shape slit by a line of cut Vextendingfrom the inner'lcircl'elof the annulus to its outer periphery, thecuted'gesfbeiiigcseparatedl from one another to form' the loop into aspiral of an arcuate extent substantially 360, the' loop beingpositioned with its axis at right angles tothe plane of `the said rst4mentioned board and with the inclined trackway tangent to the innencurve ofthe annulus', said inner curve of theannulus constitutinganother portion of the trackway and a continuationy ofV said LfirstVmentioned portion of the trackway',v and atoy monorail car on saidvtrackway, said car Ycomprising twospaced apart substantially atmemfbersembracing and spaced from the trackway'and a pair'ofwheels journalled between said members,

Ysaid'wheels having. peripheral ilanges embracing the trackway andvholding the car against sideways movement oil of the trackway. Y

V5. "A trackway for aV loop the loop toy vehicle, said trackwaycomprising'aV base having a pair of spaced approximately parallelslotsin theftop thereof, a thin board mounted in one'of the slots andextending from the base' in4 a vertical plane i with an edge of theboard inclined and constituting a portion of the trackway, a. loop atthe bottom of said portion of the trackway, said loop comprising a thinboard of annular shape slit by a line of cut extending from the innercircle of the annulus to its outer periphery, the cut edges beingseparated from one another to form the loop into `a spiral of an arcuateextent substantially 360, the separated ends of the loop being mountedone in each slot of the base, the loop being positioned with its axis atright angles to the plane of the said first mentioned board and with theinclined trackway tangent to the inner curve of the annulus, said innercurve of the annulus constituting another portion of the trackway and acontinuation of said rst mentioned portion of the trackway.

6. A toy including a trackway for a loop the loop toy vehicle, saidtrackway comprising a base having a pair of spaced approximatelyparallel slots in the top thereof, a, thin board mounted in one of theslots and extending from the base in a vertical plane with an edge ofthe board inclined and constituting a portion of the trackway, a loop atthe bottom of said portion of the trackway, said loop comprising a thinboard of annular shape slit by a line of cut extending from the innercircle of the annulus to its outer periphery, the cut edges beingseparated from one another to form the loop into a spiral of an arcuateextent substantially 360, the separated ends of the loop being mountedone in each slot of the base, the loop being positioned with its axis atright angles to the plane of the said rst mentioned board and with theinclined trackway tangent to the inner curve of the annulus, said innercurve of the annulus constituting another portion of the trackway and acontinuation -of said first mentioned portion of the trackway, and a toymonorail car on said trackway, said car comprising tWo spaced apartsubstantially flat members embracing and spaced from the trackway and apair of wheels journalled between said members, and said wheels havingperipheral flanges embracing the trackway and holding the car againstsideways movement off of the trackway;

'7. A trackway for a loop-the-loop monorail toy vehicle, said trackwaycomprising thin sheet material having an upper starting portiondownwardly inclined and lying in substantially a vertical plane and alower terminal portion also substantially in a vertical plane but spacedfrom the plane of the starting portion, said trackway having also anintermediate loop portion extending through an arc of substantially 360between the starting and terminal portions, said loop being in spiralform and of a pitch substantially equal to the distance between saidplanes, the edge of the thin sheet material constituting the track forthe vehicle, and the inside of the loop being tangent to the upper edgeof the sheet material at the bottom of the incline and to the upper edgeof the sheet material at the lower terminal portion, and means forholding the lower terminal portion of the traokway and the part of theloop spaced 360 therefrom in spaced apart vertical planes.

LESLIE H. BURLIN.

